Stand-boiler



(No Model.)

W. B. BRUCE.

STAND BOILER.

-- No. 429,335. PatentedJune 3,1890.

ww iiwmm lmlillllllllllli g W/////////////////%IHIHIHIIHZ 1m IHIIIHIH "III II i A UNITED STATES PATENT OFFICE.

WILLIAM B. BRUCE, OF STAUNTON, VIRGINIA.

STAND-BOILER.

SPECIFICATION forming part of Letters Patent No. 429,335, dated June 3, 1890.

I Application filed March 11, 1890. $erial No. 343,453. (No model.)

To all whom it may concern.-

Be it known that I, l/VILLIAM B. BRUCE, of Staunton, in the county of Augusta and State of Virginia, have invented certain new and useful Improvements in Stand-Boilers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification. I

This invention relates to certain improvements in boilers, and more particularly to stand-boilers adapted to heating water for domestic purposes.

' The object of the invention is to provide an improved stand-boiler especially adapted for heating hard water for domestic uses; and a further object is to provide a heating attachment for stand -boilers whereby the water in the stand-boiler is quickly heated without passing directly into the water-back,

thereby preventing lime or other sediment from coating the water-back, and causing damage and danger and preventing the flow of Water to and from the boiler. These objects are accomplished by, and my invention consists in, certain novel features of construction and in combinations of parts, more fully described hereinafter, and particularly pointed out in the claims.

Referring to the accompanying drawings, Figure 1 is a section through a stove, the water-back thereof, and a stand-boiler, showing the connecting and supply exit pipes.

The water-back may be solid with the pipe embedded therein. Figs. 2, 3, 4, 5, and 6 are details of connecting parts.

In the drawings, the reference-letter a indicates a stove or range provided with waterback I), and 0 indicates an upright stand-boiler provided with a supporting base or standard. A water-supply pipe e extends through the top of the boiler and opens near the bottom of the same,'and a hot-water-exit pipe f opens into and extends from the top of the boiler. The endless heating and circulating pipe g extends into and through the water-back of the stove and into and longitudinally throughout the length of the stand-boiler, and preferably extending a short distance above the same. A short pipe h extends from the water-supply pipe into the upper end or bend of the water heating and circulating pipe, and through this connecting-pipe the'watercirculating pipe is filled from the supplypipe, and is relieved when the pressure therein becomes too great on account of the excess of the steam. The lengths of the heating and circulating pipe in the Water-back are located in a vertical plane, one above the other, so that as the water in the pipe becomesheated it will rise from the lower to the upper length of the pipe and keep the water in the heatingpipe circulating through said pipe throughout the water-back and boiler. The water in the boiler is quickly and highly heated by the water in the circulating-pipe, requiring a short time to heat the water, and without passing the water in the boiler into the water-back. By this construction and arrangement hard water can be heated in the boiler without the lime and sediment therefrom stopping up the heating pipe or pipes and from settling in and coating the water-back. The circulating and heating pipe is composed of any desirable number of sections united by suitable couplings. The lower horizontal length of the water-circulating pipe between the boiler and water-back is provided with a downward bend provided with a valve or normally-closed opening, thus forming a trap, through which any sediment can be removed. If desired, the heating-pipe can be coiled or increased in length in the boiler.

lVhat I claim is 1. A stand-boiler having a water-supply pipe and a hot-water exit, in combination with a hot-water-circulating pipe extending through said boiler and connected with said supply-pipe to form a relief for excess of pressure and receive a supply of water.

2. The water-back and stand-boiler having a water-supply and hot-water exit, in combination with a hot-water-circulating pipe extending through the boiler and said waterback and connected at its upper portion with said supply-pipe.

In testimony that I claim the foregoing as my owng I affix my signature in presence of two witnesses.

IVILLIAM B. BRUCE. 

